You added a major power line across the middle of Stockport in this edit. I saw no evidence of it on the ground. Is it underground? What are the sources you used to identify this?

Strava, this one specifically http://labs.strava.com/routing-errors/#250/9/-1.34445/53.26357

Must say I was a bit disappointed to see landuse=forest added back on the tags for White River NF. Removing it really makes a huge difference around the ski resorts of Summit County. I appreciate other areas become rather white, but from talk-us I understood that removing the forest tags is the way to go.

According to a recently posted note the ferry between Newnham on Severn and Arlingham stopped shortly after WWII. You havent tagged the changeset or the way wtih source info. I'd be interested to know the source for this ferry.

More to the point nearly all these hill databases are derived from copyright OSGB data. So even if the db owners gave permission, the data will contain OSGB derived data. That's why many heights come from NPE/Provisional 1:25k maps which are out of copyright. Equally most of this info can be merged with OSM without importing it, thus avoiding the awkward stuff about permissions/copyright on the OSM side.

First dont rely on the wiki "tracks are for agricultural use". This may be applicable in Germany. In Britain I suspect we will use track or service for any non-public ways which vehicles can be seen to traverse. Most indeed will be for agricultural purposes (including things like Pheasant & Grouse shoots), but many will just provide rough & ready access to whatever facility people are using. For instance many railway lines will have access tracks used by maintenance crews. Also be aware that UK farms are large and often have fields well away from any farmyards.

I'm all for reverting this changeset. OSM is about mapping things, not dealing with how OSM data is processed by tools. If tools cannot deal with real-world cases then fix the tools not the data. As it existed the data was previously treated as expected by osm2pgsql. If osm2pgsql changes the way it processes polygons then I'm sure we would notice in rendering output. These edits fix a putative problem not a real one, and introduce a more serious one.

As an aside multipolygon does not any kind of formal specification. It has implementations which may be regarded as de facto specifications: but there are as least two current widely accepted behaviours for multipolygons. Some, but be no means all of this described (not specified) on the wiki).

I should also add that these areas are an important experiment in working out how to map woodland areas in detail. See my blog passim for some of the issues.

In summary, revert.

Excellent, the sort of thing only someone local might pick up.

If you connect the two ends of the path to the roads (Ravenwood & Knowles Avenue) then this can also be used for pedestrian routing. Ask if you need specific advice how to do this (either here, OSM messaging or email: SK53 dot OSM at gmail.com)

Many thanks: exactly the sort of extra detail we hope people will add. If it is also signposted with a public footpath sign, you can also add the tag designation=public_footpath; if not leave it as it is.

Wikipedia is not a suitable source for adding data to OSM. It may well contain copyright information. Please also have a look at long and unresolved discussions of use of name:ua, name;ru etc for British placenames.

Any idea why you deleted the PRoW leaving Foolow at S edge of village towards Eyam? Or was this just a mistake?

I noted that you changed old1_xxx tags to disused:xxx. Please note that in the Nottingham area old_xxx is actually a more common convention, and in this case the tagging is representing more than one previous occupant. The original church was Chelsea Baptist Church from inception to around 2005; then the church was used by Potters House (who may still own it) who moved to the Bluecoat School. Later, perhaps around 2011 the church was occupied by Harvest Army who are still there. The use of and old_name and old1_name were to capture this information succinctly without having to write a long explanation like this one.

@lxbarth Changing valid, albeit incomplete data on OSM by removing information, as is happening all too frequently with this program, is poor practice. I refer you to my answer on the Help site https://help.openstreetmap.org/questions/44227/car-park-entranceexits.

Demanding routing of minor service roads is a waste of your staff time & a hell of a waste of volunteer contributors' time when they have to chase & monitor these edits to prevent data degradation.

For heaven's sake get some triage in the system. Not every contributor wants to map parking aisles, and I'd hazard a guess that not many people are routing to Cottingham Cemetery, or if they are will notice the cemetery and not need a sat nav for the purpose.

I'm rather puzzled by these additional roads you added. From memory it's not possible to turn from New Quay directly into Chapel Street & only left turns allowed in coming from Chapel St. A quick check on the Bing imagery confirms this memory. Has the junction been changed recently?

If not, I'd appreciate an idea why you think these roads are necessary.

Thanks for this update. I had noticed that the PO on Lace St/Beeston Road is closed. If the Bargain Booze is labelled as such outside use that for the name, and also add a shop tag: presumably shop=alcohol, but possibly shop=convenience. The shop & amenity tags should do all the work for finding post offices etc.

Damn too busy to make this edit myself!

@ramyaragupathy : streetnames might not be copyrightable but bulk copying from another database is not legal in EU (and not ethical for OSM). Unfortunately bulk copying in this context means 500,000 people doing 1 edit each. After all if we dont follow this rule we have relatively little traction to stop BigCo from getting its crowdserfs to copy individual OSM features.

A more general comment: adding source tags really helps (for instance it would have been obvious that there was another source of aerial imagery in this area). But my Polish edits are only of places I have visited & for which I have GPS traces (and sometimes photos).

You appear to have deleted facilities which exist in the grounds of Trinity College. Do you have a reason for doing so?

My changes were based on survey & my own GPS traces